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Thoroughbred Diesel is your source for diesel performance. We offer a large selection of diesel exhaust, top name brands such as MBRP, Diamond Eye, and Magnaflow. We now offer Magnaflow mufflers online! Read below or stop clicking and call us toll free at 866-737-4966 if you have any questions about the Magnaflow mufflers listed below. Stop clicking and call us toll free at 866-737-4966.

made in  usa

MagnaFlow XL 3 Chamber Mufflers use a unique combination of large diameter perforated tubing and strategically placed sound baffles to reduce unwanted resonance and help your engine create horsepower.

The sound baffles tune the sound waves using calibrated tuning gate openings that allow portions of the waves to pass through. These tuned waves reflect off the back wall of the muffler and cancel out unwanted harsher sounds.

The large diameter perforated core eliminates the flow restrictions of a louvered style core. A careful balance between perforation size/spacing and the baffle tuning gate make for a great 3 chamber performance muffler.

4" x 9" Oval XL

In/Out Length Overall Part #
3 18" 24" 13259
3 14" 20" 13219
2 14" 20" 13214
2.25 14" 20" 13215
2.5 14" 20" 13216
2.5 18" 24" 13256
2 18" 24" 13254
2.25 18" 24" 13255
In/Out Length Overall Part #
2.5 14" 20" 13236
2 18" 24" 13264
2.5 18" 24" 13266
3 18" 24" 13269
2 14" 20" 13234
2.25 14" 20" 13235
2.25 18" 24" 13265
3 14" 20" 13239
 
In/Out Length Overall Part #
2.25 /2 Dual 14" 20" 13148
3 /2.5 Dual 14" 20" 13288
3 /2.25 Dual 14" 20" 13278
 
 

6" Round XL

In/Out Length Overall Part #
2 27" 33" 13644
2.25 27" 33" 13645
2.5 27" 33" 13646
2 22" 28" 13649
2 18" 24" 13650
 

7" Round XL

In/Out Length Overall Part #
3 /2.5 Dual 30" 36" 13762
3 /2.5 Dual 24" 30" 13763
2.25 /2 Dual 24" 30" 13760
2.5 /2.5 Dual 27" 33" 13761
In/Out Length Overall Part #
3 30" 36" 13741
3 24" 30" 13742
3 34" 40" 13740
3 18" 24" 13743
 
In/Out Length Overall Part #
2.25 18" 24" 13745
2.25 27" 33" 13744
2.5 27" 33" 13746
3 30" 36" 13749
 
 
Product Description Part # Cost
Quantity
Order
Muffler, XL 3 Chamber, 3 in. Inlet/ 3 in. Outlet, Stainless Steel, Natural, Each 13259  $67.65
Muffler, XL 3 Chamber, 2.50 in. Inlet/ 2.50 in. Outlet, Stainless Steel, Natural, Each 13216  $56.37
Muffler, XL 3 Chamber, 2.25 in. Inlet/ 2.25 in. Outlet, Stainless Steel, Natural, Each 13215  $56.37
Muffler, XL 3 Chamber, 3 in. Inlet/ 3 in. Outlet, Stainless Steel, Natural, Each   13219  $64.84
Muffler, XL 3 Chamber, 2.25 in. Inlet/ Dual 2 in. Outlet, Stainless Steel, Natural, Each 13148  $64.84
Muffler, XL 3 Chamber, 2.25 in. Inlet/ 2.25 in. Outlet, Stainless Steel, Natural, Each 13255  $64.84
Muffler, XL 3 Chamber, 3 in. Inlet/ 3 in. Outlet, Stainless Steel, Natural, Each 13743  $68.38
Muffler, XL 3 Chamber, 2 in. Inlet/ 2 in. Outlet, Stainless Steel, Natural, Each 13214  $56.37
Muffler, XL 3 Chamber, 3 in. Inlet/ 3 in. Outlet, Stainless Steel, Natural, Each 13269  $67.65
Muffler, XL 3 Chamber, 3 in. Inlet/ 3 in. Outlet, Stainless Steel, Natural, Each 13749  $86.15
Muffler, XL 3 Chamber, 3 in. Inlet/ 3 in. Outlet, Stainless Steel, Natural, Each 13239  $64.84
Muffler, XL 3 Chamber, 2.25 in. Inlet/ 2.25 in. Outlet, Stainless Steel, Natural, Each 13645  $76.12
Muffler, XL 3 Chamber, 2.25 in. Inlet/ 2.25 in. Outlet, Stainless Steel, Natural, Each 13265  $64.84
Muffler, XL 3 Chamber, 2.50 in. Inlet/ 2.50 in. Outlet, Stainless Steel, Natural, Each 13256  $64.84
Muffler, XL 3 Chamber, 3 in. Inlet/ 3 in. Outlet, Stainless Steel, Natural, Each 13741  $79.66
Muffler, XL 3 Chamber, 2 in. Inlet/ 2 in. Outlet, Stainless Steel, Natural, Each 13264  $64.84
Muffler, XL 3 Chamber, 2.50 in. Inlet/ 2.50 in. Outlet, Stainless Steel, Natural, Each 13746  $83.66
Muffler, XL 3 Chamber, 2.25 in. Inlet/ 2.25 in. Outlet, Stainless Steel, Natural, Each 13646  $76.12
Muffler, XL 3 Chamber, 3 in. Inlet/ 3 in. Outlet, Stainless Steel, Natural, Each 13742  $74.04
Muffler, XL 3 Chamber, 3 in. Inlet/ Dual 2.50 in. Outlet, Stainless Steel, Natural, Each 13288 $70.47
Muffler, XL 3 Chamber, 2.50 in. Inlet/ Dual 2.50 in. Outlet, Stainless Steel, Natural, Each 13761  $105.01
Muffler, XL 3 Chamber, 2.25 in. Inlet/ Dual 2 in. Outlet, Stainless Steel, Natural, Each 13760  $102.54
Muffler, XL 3 Chamber, 2 in. Inlet/ 2 in. Outlet, Stainless Steel, Natural, Each 13644  $76.12
Muffler, XL 3 Chamber, 3 in. Inlet/ Dual 2.25 in. Outlet, Stainless Steel, Natural, Each 13278  $70.47
Muffler, XL 3 Chamber, 2.50 in. Inlet/ 2.50 in. Outlet, Stainless Steel, Natural, Each 13266  $64.84
Muffler, XL 3 Chamber, 2 in. Inlet/ 2 in. Outlet, Stainless Steel, Natural, Each 13650  $64.84
Muffler, XL 3 Chamber, 2.50 in. Inlet/ 2.50 in. Outlet, Stainless Steel, Natural, Each 13236  $56.37
Muffler, XL 3 Chamber, 2 in. Inlet/ 2 in. Outlet, Stainless Steel, Natural, Each 13234  $56.37
Muffler, XL 3 Chamber, 3 in. Inlet/ Dual 2.50 in. Outlet, Stainless Steel, Natural, Each 13762  $107.50
Muffler, XL 3 Chamber, 3 in. Inlet/ Dual 2.50 in. Outlet, Stainless Steel, Natural, Each 13763  $105.01
Muffler, XL 3 Chamber, 3 in. Inlet/ 3 in. Outlet, Stainless Steel, Natural, Each 13740  $85.29
Muffler, XL 3 Chamber, 2.25 in. Inlet/ 2.25 in. Outlet, Stainless Steel, Natural, Each 13745  $75.07
Muffler, XL 3 Chamber, 2 in. Inlet/ 2 in. Outlet, Stainless Steel, Natural, Each 13649  $70.47
Muffler, XL 3 Chamber, 2 in. Inlet/ 2 in. Outlet, Stainless Steel, Natural, Each 13254  $64.84
Muffler, XL 3 Chamber, 2.25 in. Inlet/ 2.25 in. Outlet, Stainless Steel, Natural, Each 13744  $83.66
Muffler, XL 3 Chamber, 2.25 in. Inlet/ 2.25 in. Outlet, Stainless Steel, Natural, Each 13235  $56.37
 
Thoroughbred Diesel is proudly recognized as a Magnaflow Authorized Retailer. Don't buy from a place where you do not see the badge to the left! When you buy from Authorized Retailers you ensure you get your warranty, tech support, and so on!

If you find a better delivered price on a Magnaflow Performance product stop clicking and call us toll free at 866-737-4966, we should be able to beat any delivered price on a Magnaflow Performance product.
 
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